Home / 2,920.44-4,381.62-1,381.08

Finding the Fourth Proportional to 2,920.44, 4,381.62 and 1,381.08

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Solution

The fourth proportional to 2,920.44, 4,381.62 and 1,381.08 is: 2,072.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.44 : 4,381.62 = 1,381.08 : x
  2. Step 2: Convert to fraction form
    2,920.44/4,381.62 = 1,381.08/x
  3. Step 3: Cross multiply
    2,920.44x = 4,381.62 × 1,381.08
  4. Step 4: Simplify right side
    2,920.44x = 6,051,367.75
  5. Step 5: Solve for x
    x = 6,051,367.75/2,920.44
  6. Step 6: Final answer
    x = 2,072.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.